Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF Thailand F3 | 2018/09/02 02:00 | Worarin Kumthonkittikul v Pol Wattanakul | 1-6,2-6 |
| ITF Thailand F2 | 2018/08/25 04:00 | Tsung-Hao Huang v Worarin Kumthonkittikul | 6-3,7-6 |
| ITF Thailand F1 | 2018/08/20 02:00 | Phongsapak Kerdlaphee v Worarin Kumthonkittikul | 6-2,6-3 |
| ITF Thailand F1 | 2018/08/19 05:00 | Worarin Kumthonkittikul v Gregory Nitayamekin | 6-1,6-0 |
| ITF Thailand F1 | 2018/08/18 04:20 | Nitiwat Jityaem v Worarin Kumthonkittikul | 1-6,1-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Jeong Heon Lee v Worarin Kumthonkittikul | 6-2,6-3 |
| ITF Korea F4 | 2018/08/11 01:00 | Sang Yeop Kim v Worarin Kumthonkittikul | 0-6,3-6 |
| ITF Indonesia F3 Qual | 2018/08/04 07:00 | Worarin Kumthonkittikul v Siddharth Vishwakarma | 3-6,3-6 |
| ITF China F6 Qual | 2018/05/12 05:45 | Yani Kimon Doumanis v Ye Cong Mo | 4-6,0-6 |
| ITF China F5 Qual | 2018/05/07 05:10 | Yani Kimon Doumanis v Li-Wei Tan | 1-6,1-6 |
| ITF China F5 Qual | 2018/05/05 10:00 | Yani Kimon Doumanis v Jun Chong Zhong | 2-6,6-3,6-2 |
| ITF China F4 Qual | 2018/04/28 02:00 | Yani Kimon Doumanis v Cheng Han | 4-6,2-6 |
| ITF Australia F4 Qual | 2018/03/23 23:00 | Patrick Kotan v Yani Kimon Doumanis | 6-3,6-4 |
| ITF Australia F3 Qual | 2018/03/16 23:00 | Jesse Delaney v Yani Kimon Doumanis | 6-4,6-4 |
| ITF Australia F2 Qual | 2018/03/02 23:00 | Callum Gale v Yani Kimon Doumanis | 6-3,6-1 |
| ITF Australia F1 Qual | 2018/02/24 00:00 | Yu Hsiou Hsu v Yani Kimon Doumanis | 7-5,3-6,6-1 |